18.听下面一段独白,回答第18-20小题. 18.Where did the old lady go one evening? A.To the supermarket. B.To her grandson's party. C.To the police station. 19.Why couldn't the lady start the car? A.She lost the key. B.It wasn't her car. C.Something was wrong with the car. 20.How did the old lady feel at the end of the story? A.Happy. B.Embarrassed. C.Scared.